Improvement in mowing-machines



s. E. a. M. P. JACKSON.

Mower.

Patented Dec. 29, 1857.

UNITED STATES PATENT OFFICE.

` SILAS E. JACKSON AND MORGANP. JACKSON, OF BOONVILLE, NEV YORK.

IMPROVEMENT IN MOWlNG-MACHINES.

Specification forming part of Letters Patent No. 18,976, dated December :29, 187.

To all whom it may concern:

Beitknown that we, SlLAs E. JACKSON and MORGAN P. JACKSON, of Boonville, in the county of Oneida and State ofNew York, have invented certain new and useful Improvements in Harvesting Machines; and we do hereby declare the following to be a full, clear, and exact description ot the construction and operation thereof, reference being had to the accompanying drawings, making a part'ot' this specilcation, in which- Figure l represents a perspective view of the machine. Fig. 2 represents on ai reduced scale a perspective view from the rear of the machine, with the cutter-bar raised up to pass over an obstacle in its path. Fig. 3 represents the raising apparatus detached. Fig. 4 represents the plan of connecting the dragchain to the machine.

Similar letters of reference, where they occur in the several figures, denote like parts of the machine in all ot' them.

The nature of our invention consists in the special manner in which we have combined with harvesting machines having but one main supporting-wheel, the finger-bar resting on the ground, and bein g supported by braces connected with it and the main frame, a raising and supporting wheel, and connected therewith a lever extending to the drivers seat, so that while said wheel is always a supportingwheel to the frame of the Vmachine it may also, when desired, be used for raising up said frame to allow the cutter-bar to pass over any lnterposing obstacle.

To enable others skilled in the art to make and use our invention, we will proceed to describe the same with reference tothe drawings.

B represents a quadrangular frame, supported in the usual manner on the main driving and supporting wheel S. Motion is communicated to the cutters from the wheel S through the pinious a b c, which operate a horizontal crank that is connected to the cutter-bar by the rod d, and thus give it its reciprocating motion. The linger-bar T is connected and braced to the main frame B by the braces cfg.

The drivers seat U is located at the rear left-hand corner of the frame B, which is the rear corner most remote from the standing grain and underneath the rear cross-beam of the frame, to which the seat is attached, is

hinged, as at N, an axle, F, which has upon its loose end a supporting and raising wheel, I. The axle F lies parallel with and under neath the rear cross-piece of the frame B.

K is a guide-piece, suspended to the frame B, to keep the axle F in proper vertical position when the frame is raised up upon it, as shown in Fig. 2.

A lever, E, is hinged at the point E to a bar, M, that is secured to the frame B,`and this lever extends across the machine, so as to be easily caught and operated by the driver in his seat. The lever E is connected to the hinged axle F by stirrups L, so. that by operating said lever the frame B (particularly at the corner M) may be readily raised or lowered, which raises and lowers the cutter-bar.

H is a bent bar or arc,passing througha slot in the lever E, so that by means cfa pin passing through the lever and one of the series ot' holes in the arc H the cutters may be held at' any proper position in relation to the grass or grain to be cut by it. The wheel I also facilitates the turning around of the machine, as a large proportion ofthe weightof the machine may be thrown upon it, and in so doing it is brought considerably'under the frame and in proper position for the turning, which is always made from right to left.

The lever E is hinged at one end ofthe rear cross-piece ofthe frame B and above it, and 1s in the saine vertical plane with it. The axle F is hinged near the other end of said rear cross-piece and underneath, but also in the same vertical plain with the lever E and framepiece B, so that a compound-lever motion is had, as the lever F becomes a lever as well as the leverlE is, one receding from the frame as the other approaches it, and vice versa.

A is an auxiliary frame, and C D braces connected to it.

J is a drag-chain passing obliquely and-upward from the lower end of the brace O to and passing through a ring, O, and independent entirely of the tongue V, the whiftletrees being connected immediately to the chain J, and not to the frame or tongue; but as this portion of the machine constitutes the subjectmatter -of another application for Letters Patent, further description of it-here would be superlluous.

Having thus fully described the nature and object of our invention, we would state that We do not claim a raising Wheel and lever as and hing-ed axle F, with its Wheel I7 when argenerally applied to harvesting-machines but; ranged and located in relation to the rear cross- Whab We do qlaim as new, and desire to sepiece of the frame and the drivers seat subcure by Letters Patent, isstantially as described.

The combination, in harvesting-machines l SILAS E. JACKSON. having but one main supporting-wheel, the I MORGAN P. JACKSON.

finger-bar resting on the ground and support- Witnesses:

ed by braces connected with it; and the main A. B. STOUGHTON, frame of the machine, of the hinged lever THos. H. UPPERMAN. 

